Stigma Maydis: Mainly used for expelling wind and removing dampness, promoting blood circulation and relieving pain, strengthening spleen and regulating qi.

Longxu: Laiyuan: It is the aboveground part of Poa pratensis.

Efficacy: clearing away heat and toxic materials, inducing diuresis and relieving pain.

Indications: it is used to treat urinary yellow sores.

Distribution of animal and plant resources: Shandong and Jiangsu.

Collection and storage of medicinal materials: harvesting in summer and autumn and drying in the sun.

It's two different medicinal materials.